Find the volume required for $85\%$ removal$($Answer: $181$ m$^3).$ Column tests have produced results presented in the following table that describes the settling characteristics of a Type II suspension. The initial TSS concentration of the completely mixed suspension was $208m\frac{g}{L}.$ The suspension will be treated for TSS removal at a flow rate of $2,000\frac{m^3}{d}.$ Assume a $85\%$ removal requirement.

Percent TSS removed at indicated depths $(m)$

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